Philip Patnaude was last seen early Saturday morning

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The body recovered Monday morning by the police Marine Unit near Belmont Harbor is a 28-year-old man missing since early Saturday morning, according to the medical examiner’s office.

Philip Patnaude was identified by photographs in the wallet found on the body, a spokesman said. He had no apparent signs of trauma. An autopsy is scheduled for Tuesday.

Friends said Patnaude went to the harbor early Saturday to walk along the lake after a night out drinking. Somehow, police said, he ended up in the cold water.

A search group found Patnaude's black jacket floating in the water Sunday afternoon. Chicago Police divers were called, and they spent hours using a special underwater camera to look for the man.

Since then his parents, sister, fiancé and friends have frantically been looking for Patnaude, a U of I graduate who grew up in Downers Grove. He was planning to get married in October.

"He's the center of a pretty core group of people," said friend Kevin Callaghan. "And people love him, people love his fiancé. I keep getting phone calls, like, 'Is this a joke, is this real, is this actually happening?'"

His best friend said he'd planned on spending the weekend working on Patnaude's bachelor party. Instead he spent it looking for his friend. Patnaude attended the University of Illinois, worked as a mechanical engineer for Sargent & Lundy and has been with his fiancee for five years, said his friend, Kevin Callaghan.

Patnaude has a pilot’s license and loves outdoor sports including snowboarding, his aunt Barbara Moore said, adding that her nephew was in good spirits when he was last seen.

"He comes down here just to look into the lake," she said. "He’s a happy, very positive guy."